You can check out MediaStack: github.com/geekau/mediastack

Here is their “full vpn” compose file here(all of *arr goes through vpn): github.com/geekau/…/docker-compose.yaml

And their “mini vpn” compose(only torrenting goes through vpn): github.com/geekau/…/docker-compose.yaml

Probably something there will give you the right push towards fixing your setup? Best of luck! I am actually going to be attempting this soon(gluetun+qbit), but with ProtonVPN.